Compressor and pump



June 11, 1929. v L N 1 ,717,081

COMPRESSOR AND PUMP Filed April 25, 1927 2 Sheets-Sheet 1 Wye/7760 fiu ari 714%),

- W EVE/"082 96. I

June 11, 1929. E. WILSON COMPRESSOR AND PUMP Filed April 25, 1927 2 Sheets-Sheet 2 Patented June 11, 1929.

EDWARD WILSON, or

oomrn'nsson AND PUMP.

Application filed April 25,

'This invention relates to compressors and pumps, and has special reference to machinesof the type wherein a heavy liquid, such as mercury, is circulated by an impeller mechanism to force air or gas through the machine.

An object of the invention is to provide a compact and simplified machine for use as a compressor or pump comprising rotary impeller mechanism mounted for operation in a novel relationship tocooperating structure bottom whereby the air or, gas is taken into the machine between quantities of liquid and is discharged and compressed above the level of the liquid and piped from the machine for use.

Another object of the invention is to pro- .vide a machine for operation as a compressor or pump comprising rotary impeller mechanism supported for operation about stationary air or gas inlet devices provided with passages for admitting air.or. gas between quantities of impelled liquid passing through the impeller mechanism above the level of the body of the liquid in the machine, in combination with a motor mounted in the machine above said mechanism for operating the same.

Other objects will appear from the following description, reference being made to the accompanying drawings, in which Fig. 1 is a vertical sectional view of my improved machine.

Fig. 2 is a horizontal sectional view through the impeller mechanism.

Fig. 3 is a vertical sectional View of the impeller mechanism at right angles to the plane of the section of.Fig. 1.

Fig. 4 is an inverted plan View of the valve controlling the admission of air ougas to the machine.

Fig. 5 is a sectional view of the valve on the line 5--5 of Fig. 4.

The casing of the machine shown comprises an' outer enclosing wall 1 provided with a top wall 2 and mounted upona support having a dished, wall 3 which forms the wall of the cdmpression chamber. The motor 4 for operating the machine is supported upon the top wall 2 and enclosed within a casing 5.

An upward tubular extension 6 of the bottom wall constitutes an admission passage. for the air or gas. This tubular extension is internally threaded, and a nozzle 7 is screwed into it. This nozzle 7 is. provided with a cirand is spaced from the ring 20 so that air or and the fitting 22 and is srr. tours, MiSSOURI.

1927. Seria1 No. 186,453.

cumferential flange 8 serving as a clamping element to clamp adisc 9 rigidly upon the upper end of the extension 6. A plate 10 is seated and bolted upon a flange 11 rising from the edge of the disc 9, leaving a space 12 between the disc 9 and the plate 10 closed at the outer edges of said elements by the joint obtained by seating the plate 10 upon the flange 11.. A sleeve 13 in connection with the plate 10 has its upperend closed and encloses the upper end of the nozzle 7, being spaced therefrom as shown (Fig. 1), to permit air or gas passing from the nozzle 7 to enter the space 12. The under side of the disc 9 is provided with a pair of diametrically opposite depending arcuate flanges 14. Passages 15 from the space 12 open to the outer sides of the flanges 14 (Fig. 2), permitting air orgas to pass from the space 12 and serving as baflles to prevent the impeller mechanism from forcing the heavy liquid into said passages 15.

An angular passage 16 is formed through, the plate 10 and the sleeve 13 and at its outer end communicates with a passage 17 through the disc 9 and at its upper end with a hole 18 through a cap 19 screwed on the upper end of the sleeve 13.-

The valve for controlling the admission of air or gas through the extension 6 to the machine comprises a disc ring 20 attached to the lower end, of the tubular passage 6 and spaced therefrom by spacers 21 between and around which the air or gas may enter the passage to the machine. A fitting 22 for connection with a pipe is attached to the bottom wall 3 gas may pass between the ring 20 and the fitting 22, and thence around the spacers 21 and through the tube 6 to the'machine. A disc valve 23 is mounted between the disc ring 20 guided and prevented from lateral displacement by a depending flange 24 on the ring 20. When the machine is in operation this disc valve 23 is forced me within the flange 24 against the disc 20 (Fig. 1) and when the machine is stopped the pressure within the machine forces the valve 23 against a machined seat on the upper end of the fitting 22 and prevents escape of pressure from the machine. f

The impeller mechanism comprises an ani nular element 25 having its inner edge extending under the outer edge of the disc 9 and enclosing the arcuate flange 14. The part 25 i is formed with a number of radial chambers 26 extending outwardly from the inner periphery and having reduced openings 27 to the outer periphery. From the inner edge of the part 25 a flange 28 extends obliquely downwardly and inwardly toward the bottom wall 3 and toward the tubular inlet passage 6. This flange 28 supports a number of impeller vanes 29 which extend inwardlyand upwardly toward the under side of the disc 9. These vanes have portions below the planes of the lower edges of the flanges 14 and have their vertical outer edges formed so that when the impeller mechanism is in operation the vanes do not contact with the flanges 14 (Fig. 2).

The support for the impeller device 25, etc., comprises an appropriately shaped housing frame 30 having its lower outer edge attached to the impeller device 25. This frame 30 is supported by and rotates on a combined end thrust and radial anti-friction bearing 31 mounted on the sleeve 13. A connecting element 32 is attached to the upper end of the housing frame 30. The shaft 33 of the electric motor 4 extends through the wall 22 and to and closing the upper end of themotor is attached to the connecting element 32 so that when the motor is in operation the impeller mechanism of the machine is rotated.

The frame 34 of the motor 4 is engaged upon and within a retaining flange 35 in connection with theupper end wall 2 of the compression chamber of the machine. The upper end of the motor is provided with an extended part 36 within which an anti-friction bearing 37 is mounted on a stub shaft 38. This shaft 38 is attached to a plate 39 secured housing 5. The construction and relationship of these parts are such that the motor is held rigidly upon its seat in the housing and is prevented from objectionable oscillation when in operation so that practically noiseless operation of the machine is obtained.

In operation a sufficient quantity of mercury or other appropriate liquid is main- 'tained in the machine to about the level shown in Fig. 1, in which the lower periphery of the flange 28 and the lower ends of the impeller vanes 29 are immersed in the mercury. The remaining mechanism is above the level of the mercury. When the motor is running the impeller mechanism is rotated, with the result that the mercury is impelled into the radial chambers 26 and forced outwardly through the reduced choke outlets 27. A suction-is created by this operation, with the result that the valve. disc 23 is raised from its seat on the fitting 22 to its seat against the disc 20 within the flange 24, thus'permitting air or' gas to pass into the machine and through the openings 15 and into the chambers 26 behind the bodies of mercury in the respective chambers. It will be understood that as the vanes 29 pass the flanges 14 (Fig.

2) no substantial amount of mercury can be driven into the chambers 26, which are opposite' the flanges 14. Thus, as the mercury passes from the chambers 26. through the openings 27, air or gas is admitted to said chambers. \Vhenthe chambers pass beyond the flanges 14 the vanes 29 force mercury into I sage 1618 to lubricate the bearing 31 and other operating parts to diminish friction.

lVhile the invention is shown embodied in a compressor for. use as a refrigerating ma chine, it is obvious that it may be used with advantage as a pump and that practically no variation or change in construction is required to adapt the machine for different uses; it being understood that, when the machine is used as a pump, the coils 41 may be omitted. I contemplate these and other variations as may be required or useful in the adaptation and perfection of the machine for application to different uses. Therefore, do not restrict myself in any unessential partic-, ulars, but what I claim and desire to secure by Letters Patent is 1. In a machine of the eharacter described, the combination with a compression chamber arranged to contain a body of liquid, and stationary devices for admitting air' or gas to said chamber, of rotary centrifugal impeller mechanism, a bearing, supporting said impeller mechanism supported in said chamber for rotation about said devices in position to receive air or gas from said devices,

devices for rotating, said mechanism, and

nozzle, a pluralityof'radial chambers opena ing through said device, mechanism for rotating said device, spaced passages through said supporting means for conducting airor gas from said nozzle to said device, and

means for forcing liquid contained in said chamber and the air or gas received from said nozzle centrifugally through said radial chambers.

3. In a machine of the character described, the combination with a compression chamber arranged to contain a body of liquid, and a vertical air or gas inlet nozzle opening into from said and supporting means for conducting air or gas inlet devices,

said chamber, of a rotary centrifugal impeller device in said chamber, means for supporting said device for rotation around said nozzle, a plurality of radial chambers opening through said device, mechanism for rotating said device, spaced passages through said supporting-means for conducting air or gas nozzle to said device, means for forcing liquid contained in said chamber and the air or gas received from said nozzle'centrifugally through said radial chambers, and means for conducting portions of said liquid to operating parts of the machine as a lubricant.

4. In a machine of the character described,

the combination with a compression chamber arranged to contain a body of liquid, a device for admitting air or gas to said chamber, structure supported by said device, of rotary centrifugal impeller mechanism adjacent to said supporting structure,

means mounted on said supporting structure for supporting said impeller mechanism, a series of spaced passages through said supporting means for conducting air or gas from said device to said impeller mechanism, and means for forcing liquid and thereby said air or gas centrifugally through said impeller mechanism.

5. In amachine of the character described, the combination with a compression chamber arranged to contain a body of liqu1d, a device for admitting air or gas to said chamber, and supporting structure supported by said device,of rotary centrifugal impeller mechanism adjacent to said supporting structure, means mounted on said supporting structure for supporting said impeller mechanism,

or gas from said device to said impeller mechanism, means for forcing liquid and thereby said air or gas centrifugally through said impeller mechanism, and means for forcing part of said liquid to said supporting means.

6. In a machine of the character described, the combination vyith a compression chamber arranged to contain liquid, and stationary air of rotary centrifugal immeans supported by said for supporting said impeller mechanism, means for conducting air or gas from said inlet devices to said impeller mechanism, and devices for forcing liquid from said compression chamber and said air or gas centrifugally through said impeller mechanism and forcing part of said liquid to said supporting means, respectively.

7. In a machine of the character described, the combination with a compression chamber arranged to contain a body of liquid, a device for admittng air or gas to said chamber, and supporting structure mounted on said device in said chamber and having passages for conducting air or gas from said de vice to the impeller mechansm, of impeller peller mechanism, lnlet devices device for admitting press the air or fromsaid passages, a bearing mounted on said supporting structure supporting said impeller mechanism, means for forcing liquid pontained in said chamber and the air or gas received from said devices centrifugally through said mechanism, and elements preventing said means from forcing liquid into 1 said passages during a portion of the rotation of said impeller mechanism;

8. In a machine of the character described, the combination with a compression chamber, arranged to contain abody of liquid, a

air or gas to said chamber, and supporting structure mounted on said device in said chamber and having passages for conducting air or gas from said device to the impeller mechanism, of impeller mechanism arranged to receive air or gas from said passages, and having radial chambers therein, a bearing mounted on said supporting structure supporting said im eller mechanism, and means for forcing iquid contained in said chamber and the air or gas. received from said devices centrifugally through said chambers.

9. In a machine of the character described, the combination with a compression chamber arran ed to contain abody of liquid, a device for admitting air or gas to said chamber, and

supporting structure mounted on said device in said chamber and having passages for conducting air or gas from said device to the impeller mechanism, of impeller mechanism arranged to receive air or gas from said passages, and having radial chambers therein, a bearing mounted on said supporting structure supporting said impeller mechanism, means for forcing liquid contained in said chamber and the air or gas received from said devices centrifugally through said chambers, and elements preventing said means from forcing liquid into said passages during a portion of the rotation of said impeller mechanism.

' 10. A machine of the character described comprising a compression chamber arranged to contain a body of liquid, a device extending into said chamber for admitting air or gas, supporting structure attached to said device, an annular disc supported around said device and having radial chambers, means for conducting air orv gas from said device to said chambers, an inclined portion on said annular disc for conducting liquid to said chambers, and varies on said inclined portion for forcing liquid intosaid chambers to comgas received from said con- I ducting means from said device.

11. A machine of the character described comprising a compression chamber arranged to contain a body of liquid, a device extending into said chamber for admitting air or gas, supporting structure attached to said device, an annular disc supported around said de said chambers.

vice and having radial chambers, means for conducting air or gas from said device to said I with an inlet opening through its'bottom wall, a nozzle for conducting air or gas from said opening into said chamber, supporting structure rigid with said nozzle in said chamber, an annular rotarycentrifugal impeller device mounted on said supporting structure and surrounding said nozzle, means for rotating said device, means for forcing liquid contained in said chamber centrifugally through said device, means for causing said liquid to force air or gas from said nozzle through said device, and elements prevent ing liquid from entering said nozzle during aportion of the rotation of said impeller de- V ce.

13. A machine of the characterdescr-ibed comprising a compression chamber arranged to contain a body of liquid and having an inlet opening, a nozzle in said chamber arranged to receive air or gas from said opening, supporting structure rigid with said nozzle in said chamber, an annular impeller device mounted on said supporting structure and surrounding said nozzle and provided with radial chambers having reduced outlets at the periphery of said device, means for conducting air or gas from said nozzle to said chambers, and parts in connection with said impeller device for forcing-liquid and thereby the air or gas radially through 14. In a machine of the character described, the combination with a rigid nozzle and a support rigid on said nozzle having passages for conducting air or gas from said nozzle, of rotary centrifugal impeller mechanism mounted on said support for rotation thereon and arranged to receive air or gas from said passages, a compression chamber arranged to contain liquid, means supported by the impeller mechanism for forcing liquid from said compression chamber behind the air or gas through said impeller mechanism, and means for rotating said impeller mechanism.

15. In a machine of the character described, the combination with a rigid air or gas inlet device, and a support rigid on said inlet deivice and having passages for conducting air or gas from said inlet device, of centrifugal impeller mechanism rotatively supported by said support and arranged to receive air or gas from said passages, a compression cham ber arranged to contain liquid and means for causing liquid from said compression chamber to pass centrifugally through said mechanism and to force air or gas received from said passages through said mechanism.

16. In a machine of the character described, the combinatiomwith a compression chamber arranged to contain a body of liquid, a stationary inlet nozzle extending upwardly through the body of liquid into said chamber, and a support rigid on said nozzle and having downwardly openpassages for conducting air or'gas received from said nozzle, of rotary centrifugal impeller mechanism mounted on said support for rotation about said nozzle and arranged to receive air or gas from said passages, means for forcing liquid contained in said chamber and air or gas received from said passages centrifugally through said mechanism, and bafile devices for preventing liquid from filling said passages during a portion of the rotation of said impeller mechanism.

17. In a machine of thecharacter described, the combination with a compression chamber arranged to contain a body of liquid, and a rigid support in said chamber having passages therethrough for admission of air or gas into said chamber, of rotary centrifugal impeller mechanism mounted on said support, means for forcing liquid contained in said chamber and air or gas received from said passages through said mechanism, and means for preventing liquid from entering said passages during a portion of the rotation of said impeller mechanism.

EDWARD WILSON. 

